/* ==========================================================================
   ESTILOS DE BÚSQUEDA
   ========================================================================== */

/* Overlay de búsqueda */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 3rem 1rem;
    overflow-y: auto;
    animation: fadeIn 0.2s ease;
}

.search-overlay.active {
    display: flex;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Modal de búsqueda */
.search-modal {
    background: var(--color-white);
    border-radius: 12px;
    max-width: 800px;
    width: 100%;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s ease;
    position: relative;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header de búsqueda */
.search-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--color-border-light);
    flex-shrink: 0;
}

.search-input-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.search-icon {
    position: absolute;
    left: 1rem;
    width: 20px;
    height: 20px;
    color: var(--color-text-muted);
    pointer-events: none;
}

.search-input {
    width: 100%;
    padding: 0.875rem 3rem 0.875rem 3rem;
    font-family: var(--font-body);
    font-size: 1.05rem;
    border: 2px solid var(--color-border);
    border-radius: 8px;
    background: var(--color-white);
    color: var(--color-text);
    transition: all var(--transition-fast);
    outline: none;
}

.search-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(95, 41, 135, 0.1);
}

.search-close {
    position: absolute;
    right: 0.75rem;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.search-close:hover {
    background: var(--color-bg-light);
    color: var(--color-text);
}

.search-close svg {
    width: 18px;
    height: 18px;
}

.search-tips {
    margin-top: 0.75rem;
}

.search-tip {
    display: inline-block;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    font-style: italic;
}

/* Contenedor de resultados */
.search-results-container {
    flex: 1;
    overflow-y: auto;
    min-height: 300px;
    max-height: 50vh;
}

.search-results {
    padding: 0.5rem;
}

/* Header de resultados */
.results-header {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 0.5rem;
}

.results-count {
    font-family: var(--font-ui);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Items de resultados */
.search-result-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-fast);
    margin-bottom: 0.5rem;
    border: 1px solid transparent;
}

.search-result-item:hover,
.search-result-item.selected {
    background: var(--color-primary-pale);
    border-color: var(--color-primary);
    transform: translateX(4px);
}

.result-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-light);
    border-radius: 6px;
}

.result-content {
    flex: 1;
    min-width: 0;
}

.result-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
    flex-wrap: wrap;
}

.result-title {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
}

.result-badge {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-tema {
    background: #e3f2fd;
    color: #1565c0;
}

.badge-ejercicio {
    background: #f3e5f5;
    color: #6a1b9a;
}

.badge-recurso {
    background: #fff3e0;
    color: #e65100;
}

.result-numero {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.25rem;
}

.result-ejercicio {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.result-description {
    font-family: var(--font-body);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.4;
    margin-top: 0.25rem;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.result-arrow {
    flex-shrink: 0;
    color: var(--color-text-light);
    font-size: 1.25rem;
    transition: all var(--transition-fast);
}

.search-result-item:hover .result-arrow,
.search-result-item.selected .result-arrow {
    color: var(--color-primary);
    transform: translateX(4px);
}

/* Sugerencias iniciales */
.search-suggestions {
    padding: 1rem;
}

.suggestion-group {
    margin-bottom: 2rem;
}

.suggestion-group:last-child {
    margin-bottom: 0;
}

.suggestion-group h4 {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.suggestion-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.suggestion-btn {
    padding: 0.5rem 1rem;
    font-family: var(--font-ui);
    font-size: 0.9rem;
    background: var(--color-bg-light);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.suggestion-btn:hover {
    background: var(--color-primary-pale);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* Sin resultados */
.no-results {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    text-align: center;
    color: var(--color-text-muted);
}

.no-results svg {
    margin-bottom: 1rem;
    opacity: 0.5;
}

.no-results h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: 0.5rem;
}

.no-results p {
    font-family: var(--font-body);
    font-size: 0.95rem;
}

/* Footer de búsqueda */
.search-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-cream);
    border-radius: 0 0 12px 12px;
    flex-shrink: 0;
}

.search-shortcuts {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.search-shortcuts span {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.search-shortcuts kbd {
    display: inline-block;
    padding: 0.2rem 0.4rem;
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

/* Botón de búsqueda en navegación */
.search-trigger {
    display: flex !important;
    align-items: center;
    gap: 0.5rem;
}

.search-trigger svg {
    width: 14px;
    height: 14px;
}

/* Highlight de términos */
mark {
    background: rgba(255, 235, 59, 0.5);
    color: inherit;
    padding: 0.1em 0.2em;
    border-radius: 2px;
}

/* Responsive */
@media (max-width: 768px) {
    .search-overlay {
        padding: 1rem 0.5rem;
    }

    .search-modal {
        max-height: 90vh;
        border-radius: 8px;
    }

    .search-header {
        padding: 1rem;
    }

    .search-input {
        font-size: 1rem;
        padding: 0.75rem 2.75rem 0.75rem 2.75rem;
    }

    .search-results-container {
        max-height: 60vh;
    }

    .search-result-item {
        padding: 0.875rem;
        gap: 0.75rem;
    }

    .result-icon {
        font-size: 1.25rem;
        width: 32px;
        height: 32px;
    }

    .result-title {
        font-size: 0.95rem;
    }

    .result-description {
        font-size: 0.85rem;
    }

    .search-shortcuts {
        gap: 1rem;
        font-size: 0.75rem;
    }

    .suggestion-items {
        gap: 0.4rem;
    }

    .suggestion-btn {
        font-size: 0.85rem;
        padding: 0.4rem 0.8rem;
    }
}

@media (max-width: 480px) {
    .search-overlay {
        padding: 0;
        align-items: stretch;
    }

    .search-modal {
        max-height: 100vh;
        border-radius: 0;
    }

    .search-header {
        padding: 0.875rem;
    }

    .search-footer {
        padding: 0.75rem 1rem;
    }

    .search-shortcuts {
        flex-direction: column;
        gap: 0.5rem;
        align-items: center;
    }
}

/* Animación de carga */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading-results {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    color: var(--color-text-muted);
    animation: pulse 1.5s ease-in-out infinite;
}